RE: Shooting w/finger and no sight
I did shoot like that, until I put the compounds away for good last year. I shot 3-under with my compounds. That let me keep pretty much the same sight picture I had when using a split finger release on my recurves and longbows. You'll be surprised how quickly you'll start putting good hunting groups in the target at 20 yards. Much easier than you think.
The toughest part will be developing a smooth release if you're not used to fingers shooting.